2113536 has 60 divisors (see below), whose sum is σ = 5766992. Its totient is φ = 688128.

The previous prime is 2113523. The next prime is 2113567. The reversal of 2113536 is 6353112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (2) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49131 + ... + 49173.

2^2113536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2883496).

2113536 is an abundant number, since it is smaller than the sum of its proper divisors (3653456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113536 is an frugal number, since it uses more digits than its factorization.

2113536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 48 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 2113536 is about 1453.8005365249. The cubic root of 2113536 is about 128.3324690259.

Adding to 2113536 its reverse (6353112), we get a palindrome (8466648).

The spelling of 2113536 in words is "two million, one hundred thirteen thousand, five hundred thirty-six".